KR20140000084A - Touch panel - Google Patents

Abstract

The present invention relates to a touch panel comprising a transparent substrate where a wire array is formed; a first connection part formed at the end part of the wire array; a flexible printed circuit board where a circuit diode is formed and a second connection part formed at the circuit diode and connected to the first connection part wherein a protruding part is formed at one of the first and second connection parts and a groove part is formed at the other for facilitating the aligning of the wire array and flexible printed circuit board and improving connection reliability.

Description

Touch Panel {Touch Panel}

The present invention relates to a touch panel.

With the development of computers using digital technology, auxiliary devices of computers are being developed together. Personal computers, portable transmission devices, and other personal information processing devices use various input devices such as a keyboard and a mouse And performs text and graphics processing.

However, as the use of computers is gradually increasing due to the rapid progress of the information society, there is a problem that it is difficult to efficiently operate a product by using only a keyboard and a mouse which are currently playing an input device. Therefore, there is an increasing need for a device that is simple and less error-prone, and that allows anyone to easily input information.

In addition, the technology related to the input device is shifting beyond the level that satisfies the general functions, such as high reliability, durability, innovation, design and processing related technology, etc. In order to achieve this purpose, As a possible input device, a touch screen has been developed.

The touch panel is provided on the display surface of a flat display device such as an electronic notebook, a liquid crystal display device (LCD), a plasma display panel (PDP), or an el (electroluminescence) and an image display device such as a CRT (Cathode Ray Tube) And is a tool used to allow the user to select desired information while viewing the image display device.

The types of touch panel are resistive type, capacitive type, electro-magnetic type, SAW type, surface acoustic wave type, and infrared type. Separated by. These various types of touch panels are employed in electronic products in consideration of problems of signal amplification, differences in resolution, difficulty in design and processing technology, optical characteristics, electrical characteristics, mechanical characteristics, environmental characteristics, input characteristics, durability and economical efficiency Currently, the most widely used methods are resistive touch panels and capacitive touch panels.

An example of a conventional touch panel may be a touch panel disclosed in Korean Patent Registration No. 10-1144152. In the touch panel disclosed in the registered patent, an electrode pattern is formed on a transparent substrate. In the transparent substrate, a wire extending from the electrode pattern is formed so that a flexible printed circuit board (FPCB) can be electrically connected to the electrode pattern.

The end of the wiring is positioned at the edge of the transparent substrate, and the flexible circuit board is electrically connected to the end of the wiring while being fixed to the edge of the transparent substrate by bonding or the like.

On the other hand, the flexible printed circuit board must be connected to the wiring by a precise alignment process so as to prevent connection defects with the wiring. However, since the connection structure of the conventional touch panel wiring and the flexible circuit board has a structure in which the ends of the flexible circuit board are simply connected to the wires while being bonded to the edges of the transparent substrate, a precise freezing between the flexible circuit board and the wiring is performed. Phosphorus is not easy.

In addition, even when the flexible circuit board is arranged in accordance with the wiring, since the flexible circuit board goes through a pressing process for fixing to the transparent substrate, the end of the flexible circuit board moves in this pressing process, thereby leaving its position. This causes a poor connection between the flexible circuit board and the wiring.

The present invention is to solve the above problems of the prior art, an aspect of the present invention is to provide a touch panel that is easy to align the flexible circuit board and the wiring process.

Another object of the present invention is to provide a touch panel having improved connection reliability between a flexible circuit board and a wiring.

Touch panel according to an embodiment of the present invention is a transparent substrate having a wiring array; A first connecting portion formed at an end of the wiring array; A flexible printed circuit board (FPCB) having circuit terminals formed thereon; And a second connection part formed on the circuit terminal and bonded to the first connection part, wherein one of the first connection part and the second connection part is formed with a protruding part, and the other is formed with a groove part. The connection part and the second connection part may be joined to each other by the protrusion being inserted into the groove part.

The protrusion of the touch panel according to the embodiment of the present invention is formed in the entire length of any one of the first connection portion and the second connection portion, the groove portion is formed in the entire length of the other of the first connection portion and the second connection portion. Can be.

Any one of the first connecting portion and the second connecting portion of the touch panel according to an embodiment of the present invention is formed side by side in the width direction of any one of the first connecting portion and the second connecting portion while the plurality of protrusions are formed, The other one of the first connecting portion and the second connecting portion may be formed side by side in the width direction of the other of the first connecting portion and the second connecting portion while the groove portion is composed of a plurality.

The groove portion of the touch panel according to the embodiment of the present invention has a cross section in the width direction 'V' shape, the cross section in the width direction may have a triangular shape or an isosceles trapezoidal shape.

The first connection portion and the second connection portion of the touch panel according to the embodiment of the present invention may have the same length and width.

The touch panel according to the embodiment of the present invention protrudes from any one of the transparent substrate and the flexible circuit board, and the width of the first connection portion or the second connection portion formed on any one of the transparent substrate and the flexible circuit board. A guide part disposed adjacent to both sides of the direction, wherein the first connection part and the second connection part are formed on the other one of the transparent substrate and the flexible circuit board in the process of being joined to each other; Both sides of the connection part or the width direction of the second connection part may be guided by one surface of the guide part.

A tapered surface may be formed on one surface of the guide part of the touch panel according to the embodiment of the present invention.

The first connection portion of the touch panel according to the embodiment of the present invention may be formed integrally with the same material as the wiring array.

The second connection portion of the touch panel according to the embodiment of the present invention may be formed integrally with the same material as the circuit terminal.

The first connection portion and the second connection portion of the touch panel according to the embodiment of the present invention may be bonded to each other by an anisotropic conductive film (ACF) or an anisotropic conductive adhesive (ACA).

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, protrusions and grooves corresponding to each other are formed in the first connection portion and the second connection portion to facilitate the mutual arrangement of the wiring array and the flexible circuit board.

Furthermore, the present invention is separate in the process of arranging the first connecting portion and the second connecting portion to face each other, when the protrusions and the grooves are formed in plural and each one surface of the first connecting portion and the second connecting portion is formed of the uneven surface corresponding to each other. This provides the advantage that they can be arranged in place for mutual bonding even if the alignment of the components is not performed.

In addition, according to the present invention, since one surface of each of the first connection portion and the second connection portion is formed as a concave-convex surface instead of a simple plane, the contact area of the first connection portion and the second connection portion is widened so that the connection reliability is improved when they are joined to each other. Provide an advantage.

1 is an exploded perspective view of a touch panel according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a state before the first connecting portion and the second connecting portion shown in FIG. 1 are joined. FIG.
3 is a cross-sectional view showing a state in which the first connection portion and the second connection portion shown in FIG. 2 are joined.
4 is a cross-sectional view of a touch panel according to a second embodiment of the present invention.
5A and 5B are cross-sectional views of a touch panel according to a third embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description and examples taken in conjunction with the accompanying drawings. It should be noted that, in the present specification, reference numerals are added to the constituent elements of each drawing, and the same constituent elements have the same number as far as possible even if they are displayed on different drawings. Also, the terms "one side,"" first, ""first,"" second, "and the like are used to distinguish one element from another, no. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a touch panel according to a first exemplary embodiment of the present invention, FIG. 2 is a cross-sectional view illustrating a bonding state before the first and second connecting portions shown in FIG. 1 are bonded, and FIG. 3 is shown in FIG. 2. It is sectional drawing which showed the state in which the connected 1st connection part and the 2nd connection part were joined.

1 to 3, the touch panel 1 according to the first embodiment of the present invention, the transparent substrate 100, the wiring array 120 is formed, and the end of the wiring array 120 The first connection part 300 formed, the flexible printed circuit board (FPCB) 200 having the circuit terminal formed thereon, and the second connection part 400 formed on the circuit terminal and bonded to the first connection part 300. ), Wherein any one of the first connecting portion 300 and the second connecting portion 400 is formed with a protrusion 411 and the other has a groove portion 311 formed therein. The second connection portion 400 is the protrusion 411 is inserted into the groove 311 is bonded to each other.

The transparent substrate 100 serves to provide a region where the electrode 110 and the wiring array 120 are to be formed. The transparent substrate 100 should have a supporting force capable of supporting the electrode 110 and the wiring array 120 and transparency for allowing a user to recognize an image provided by the image display apparatus.

In view of the above-described support and transparency, the transparent substrate 100 is made of polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene naphthalate (PEN), polyether sulfone (PES) , Cyclic olefin polymer (COC), Triacetylcellulose (TAC) film, Polyvinyl alcohol (PVA) film, Polyimide (PI) film, Polystyrene (PS), Biaxially stretched polystyrene (K resin-containing biaxially oriented PS (BOPS), glass, tempered glass, or the like, but is not necessarily limited thereto.

The electrode 110 serves to generate a signal when a user touches and to recognize touch coordinates in a controller (not shown). The signal generated from the electrode 110 is transmitted to the controller (not shown) through the wiring 121 included in the wiring array 120.

The wiring array 120 may include a number of wirings 121 corresponding to the number of electrodes 110. The wiring 121 may be made of a metal having high electrical conductivity and easy processing. As the metal, for example, a metal made of copper (Cu), aluminum (Al), gold (Au), silver (Ag), titanium (Ti), palladium (Pd), chromium (Cr), or a combination thereof may be used.

One end of the wiring 121 may be connected to the electrode 110, and the other end of the wiring 121 may be positioned at an edge of one surface of the transparent substrate 100 which is an inactive region.

When the wiring array 120 includes a plurality of wirings 121, the other end of each of the wirings 121 may be formed by considering the width of the flexible printed circuit board 200 connected to the wiring array 120. It may be located adjacent to each other at the edges.

The other end of the wiring array 120 formed while the other ends of the plurality of wirings 121 are adjacent to each other is electrically connected to the flexible printed circuit board 200 (FPCB) connected to the controller.

The embodiment includes a first connection part 300 and a second connection part 400 that allow the wiring array 120 and the flexible circuit board 200 to be electrically connected to each other.

The first connection part 300 is formed at the other end of the wiring array 120. As shown in the drawing, when the wiring array 120 includes a plurality of wires 121, the first connection part 300 may be formed of an aggregate of first unit connection parts 310 respectively formed in the plurality of wires 121. have.

In this case, the first unit connection part 310 may be formed at the end of the wiring 121 while having a different line width or shape than the wiring 121. In this case, the first connection part 300 may be made of the same material as the wiring 121 and integrally formed. Alternatively, the first unit connection part 310 may be an end portion of the wiring 121 itself.

The plurality of first unit connectors 310 may be arranged side by side close to each other as shown.

The second connector 400 is formed from a circuit terminal (not shown) formed on one surface of the flexible circuit board 200.

The circuit terminals may have a number corresponding to the number of wires 121 that are electrically connected. Therefore, like the first connection part 300, the second connection part 400 formed at the circuit terminal may also be formed of an aggregate of a plurality of second unit connection parts 410. The second unit connection part 410 may have a configuration different from that of the circuit terminal in the circuit terminal and formed separately. In this case, the second connection part 400 may be made of the same material as the circuit terminal and integrally formed with the circuit terminal. Alternatively, the second unit connection part 410 may be a circuit terminal itself.

Any one of the first connecting portion 300 and the second connecting portion 400 is formed with a protrusion 411. And the other one groove 311 is formed. 1 to 3 illustrate an example in which the protrusion 411 is formed on the second connection part 400 and the groove part 311 is formed on the first connection part 300. Therefore, the following description will be made based on the illustrated example.

First, as shown in FIG. 1, the first connection part 300 is formed to have a predetermined length and width. The second connection part 400 is also formed to have a predetermined length and width. In this case, the first connection part 300 and the second connection part 400 are bonded to each other while the area occupied by the transparent substrate 100 and the flexible circuit board 200 is minimized, respectively. In order to maximize the area, the first connection portion 300 and the second connection portion 400 preferably have the same length and width. As the junction area between the first connector 300 and the second connector 400 is maximized, the connection reliability between the wiring array 120 and the flexible circuit board 200 may be improved.

The protrusion 411 formed on the second connection part 400 may be formed in the entire length of the second connection part 400 along the length of the second connection part 400. The groove 311 formed in the first connection part 300 may also be formed in the entire length of the second connection part 400 along the length of the first connection part 300. This is also to make the junction area between the first connecting portion 300 and the second connecting portion 400 maximum.

The protrusion 411 may be continuously formed along the width direction of the second connection part 400. 1 to 3, when a plurality of second unit connecting parts 410 constituting the second connecting part 400 is formed, one protruding part 411 is formed for each second unit connecting part 410 while the protruding part is formed. 411 may be composed of a plurality of protrusions (411). The plurality of protrusions 411 are arranged side by side along the width direction of the second connecting portion 400 which is an aggregate of the plurality of second unit connecting portions 410. One surface of the second connecting portion 400 formed by arranging a plurality of protrusions 411 in parallel is formed as an uneven surface formed along the width direction of the second connecting portion 400 as a whole.

The same is true of the groove portion 311. The groove part 311 may be continuously formed along the width direction of the first connection part 300. As shown in FIGS. 1 to 3, when the first unit connection part 310 constituting the first connection part 300 includes a plurality of grooves, one groove part 311 is formed for each first unit connection part 310 and the groove part is formed. 311 may include a plurality of grooves 311. The plurality of groove portions 311 are arranged side by side along the width direction of the first connection portion 300 which is an aggregate of a plurality of unit connection portions. One surface of the first connection portion 300 formed by arranging the plurality of groove portions 311 may be formed as an uneven surface formed along the width direction of the first connection portion 300 as a whole.

Meanwhile, as illustrated in FIGS. 2 and 3, the groove 311 may have a 'V' shape in a width direction. In addition, the protrusion 411 may have a cross section in a width direction in a triangular shape.

This is to maximize the area of the surface of the protrusion 411 facing the surface of the groove 311 when the protrusion 411 is inserted into the groove 311. In order to make the surface of the protrusion 411 generally face the groove 311 surface, the angle of the inclined surface forming the groove 311 surface and the angle of the inclined surface forming the protruding portion 411 opposite thereto are formed to be the same. It is preferable to be.

However, the protrusion 411 and the groove 311 are not limited to the examples of the above-described shape. Of course, it can be made in various shapes.

On the other hand, the method of forming the above-mentioned concave-convex surface on each surface of the first connecting portion 300 and the second connecting portion 400 is as follows.

First, the wiring 121 included in the wiring 121 array may be formed on the transparent substrate 100 by a method such as plating or vapor deposition. In particular, when the wiring 121 is formed of silver salt, exposure / development processing may be performed. It may be formed on the transparent substrate 100 through.

As described above, the wire 121 formed as described above may immediately become the first unit connection part 310, and the first connection part 300 is an assembly of a plurality of first unit connection parts 310 arranged adjacent to each other. Will be made.

The first connection part 300 may have an uneven surface by physically pressing one surface of the first connection part 300 by using a pressing body (not shown) having an uneven surface corresponding to the uneven surface to be formed.

In addition, when the wiring 121 is made of silver salt, the wiring 121 is deformed to shrink when it is dried during the exposure / development process, and the uneven surface may be formed in this deformation process. To this end, a separate frame having an uneven surface formed on one side may be used. The frame may be aligned on, for example, the transparent substrate 100 such that the uneven surface formed on the frame contacts one surface of the first connecting portion 300. The first connecting portion 300 of the wiring 121 made of silver salt may be The concave-convex surface corresponding to the concave-convex surface formed in the mold during the contraction process may be formed.

Second connection portion 400 formed on the flexible circuit board 200 In addition, by pressing a surface of the second connection portion 400 using a separate pressing body having an uneven surface, such as to form an uneven surface can do.

Meanwhile, as shown in FIG. 3, the first connection part 300 having the groove part 311 is formed on the surface of the second connection part 400 in which the protrusion part 411 is formed, as shown in FIG. 3. They are joined to each other while being in contact with each other. In this case, the first connecting portion 300 and the second connecting portion 400 are bonded by the adhesive layer 350 interposed therebetween so as to maintain the state in which the first connecting portion 300 and the second connecting portion 400 are bonded to each other. Can be. The adhesive layer 350 may be made of, for example, an anisotropic conductive film (ACF) or an anisotropic conductive adhesive (ACA).

The first connection part 300 and the second connection part 400 are pressed on the other surface of the flexible circuit board 200 while the adhesive layer 350 is interposed between the first connection part 300 and the second connection part 400. Can be bonded together.

Since one surface of the first connection part 300 and one surface of the second connection part 400 are formed of the uneven surface as described above, an area in contact with the adhesive layer 350 increases compared with the case where the surface of the first connection part 300 is formed. Therefore, the first connector 300 and the second connector 400 can be more firmly bonded.

Hereinafter, a second embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the content overlapping with the first embodiment is omitted.

4 is a cross-sectional view of a touch panel according to a second embodiment of the present invention.

As shown in FIG. 4, the touch panel 2 according to the present embodiment provides another example in the specific shape thereof compared with the protrusion 411 of the touch panel 1 according to the first embodiment.

The protrusion 412 of the present exemplary embodiment may have an isosceles trapezoidal shape in cross section in the width direction. As the protrusion 412 has an isosceles trapezoidal cross section, the tip portion of the protrusion 412 located below the bar as shown in FIG. 4 forms a plane.

The groove 311 has a fine width and depth. When the protrusion 412 has a triangular shape as in the first embodiment, the protrusion 411 may not be inserted as much as the depth of the groove 311 into the groove 311. Can be.

Therefore, the height of the protrusion 412 needs to be reduced in order for the protrusion 412 to be inserted as deep as possible into the groove 311 by the height of the protrusion 412. In order to reduce the height of the protrusion 412, the protrusion 412 may allow the tip of the protrusion 412 to be flat, as the tip of the protrusion 411 having a triangular cross section is cut out. . The protrusion 412 formed as described above has an equilateral trapezoidal shape in cross section.

Hereinafter, a third embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the content overlapping with the first embodiment is omitted.

5A and 5B are cross-sectional views of a touch panel according to a third embodiment of the present invention.

The touch panel 2 according to the present exemplary embodiment may protrude from any one of the transparent substrate 100 and the flexible printed circuit board 200 in the touch panel 1 according to the first exemplary embodiment. 100 and a guide part disposed adjacent to both sides of the first connection part 300 or the second connection part 400 formed in any one of the flexible circuit board 200 in the width direction.

The guide part prevents the first connection part 300 and the second connection part 400 which are mutually joined from each other in the width direction.

Specifically, the guide portion protrudes from any one of the transparent substrate 100 and the flexible circuit board 200. 5A illustrates an example in which the guide part is formed in the flexible circuit board 200, and FIG. 5B illustrates an example in which the guide part is formed in the transparent substrate 100.

First, referring to FIG. 5A, the guide part 510 protrudes from one surface of the flexible circuit board 200. The guide part 510 is disposed close to both sides of the second connection part 400 in the width direction. The guide portion 510 may have a protruding height that is the same as or higher than that of the second connection portion 400.

In the guide part 510 formed as described above, one end surface 510a of the guide part 510 faces the inclined surface 411a of the protrusion 411 formed at both ends in the width direction of the second connection part 400. A gap 401 is formed between one end surface 510a of the guide part 510 and the inclined surface 411a.

One side of the guide portion 510 is an outer side 311a of the groove portion 311 formed at both ends of the first connection portion 300 in the width direction at the end of the first connection portion 300 and the second connection portion 400. Guided by 510a. That is, the one side 311a may be guided so as not to deviate outward in the width direction with respect to the one surface 510a. Therefore, the first connecting portion 300 and the second connecting portion 400 may be joined to each other without deviation in the width direction.

5B illustrates an example in which the guide part 520 protrudes from one surface of the transparent substrate 100. The guide part 520 is disposed close to both sides of the first connection part 300 in the width direction. The guide portion 520 may have a height that protrudes higher than the height of the first connection portion 300. In this case, the end of the guide portion 520 is formed higher than the groove portion 311 formed at both ends of the width direction of the first connection portion 300 to form a side wall.

In the process of joining the first connector 300 and the second connector 400 to each other, the outer side 411a of the protrusion 411 formed at both ends in the width direction of the second connector 400 is an end of the guide 500. It may be guided by one surface 520a. The one side 411a may be guided so as not to deviate outward in the width direction with respect to the one surface 520a. Therefore, the first connecting portion 300 and the second connecting portion 400 may be joined to each other without deviation in the width direction.

Meanwhile, the guide parts 510 and 520 described above have one side 411 a of the protrusion 411 or one side 311 a of the groove part 311 on one surface 510 a and 520 a of the end as shown in FIGS. 5A and 5B. Tapered surfaces 512 and 522 may be formed to facilitate this guidance.

In the touch panels 1, 2, and 3 according to the embodiment of the present invention described above, protrusions 411, 412 and grooves 311 corresponding to each other are formed in the first connection part 300 and the second connection part 400. The arrangement of the wiring array 120 and the flexible circuit board 200 is easy.

Furthermore, in the present invention, when the protrusions 411 and 412 and the grooves 311 are formed in plural, the first connection part 300 is formed when each surface of the first connection part 300 and the second connection part 400 is formed with the uneven surface corresponding to each other. ) And the second connector 400 may be arranged in position for mutual bonding even if a separate alignment operation is not performed in the process of arranging them to face each other.

In addition, according to the present invention, since one surface of each of the first connecting portion 300 and the second connecting portion 400 is formed as a concave-convex surface instead of a simple plane, the contact area between the first connecting portion 300 and the second connecting portion 400 is increased. It becomes wider and offers the advantage of improved connection reliability when joined together.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that the modification or the modification is possible by the person.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1,2,3; Touch panel 100; Transparent substrate
110; An electrode 120; Wiring array
121; Wiring 200; Flexible circuit board
300; First connecting portion 310; First unit connection
311; A groove portion 400; Second connection
410; Second unit connectors 411, 412; projection part
510, 520; Guide part 512, 522; tapered surface

Claims (10)

A transparent substrate on which a wiring array is formed;
A first connecting portion formed at an end of the wiring array;
A flexible printed circuit board (FPCB) having circuit terminals formed thereon; And
And a second connection portion formed in the circuit terminal and bonded to the first connection portion.
One of the first connection portion and the second connection portion is formed with a protrusion and the other is formed with a groove portion,
And the protrusion is inserted into the groove to be joined to each other.
The method according to claim 1,
The protruding portion is formed over the entire length of any one of the first connecting portion and the second connecting portion, and the groove portion is formed over the entire length of the other of the first connecting portion and the second connecting portion.
The method according to claim 2,
Any one of the first connecting portion and the second connecting portion is formed side by side in the width direction of any one of the first connecting portion and the second connecting portion while the plurality of protrusions are formed,
The other of the first connecting portion and the second connecting portion is a touch panel, characterized in that formed in the width direction of the other one of the first connecting portion and the second connecting portion while the plurality of the groove portion.
The method according to claim 3,
The groove portion has a 'V' shape in the cross section in the width direction,
The protruding portion is a touch panel, characterized in that the cross section in the width direction has a triangular shape or an isosceles trapezoidal shape.
The method according to claim 3,
And the first and second connection portions have the same length and width.
The method according to claim 5,
A guide part protruding from one of the transparent substrate and the flexible circuit board and disposed adjacent to both sides of a width direction of the first connection part or the second connection part formed on any one of the transparent substrate and the flexible circuit board ( Further including;
Both sides of the first connection part or the second connection part formed in the other of the transparent substrate and the flexible circuit board in the width direction of the first connection part and the second connection part are joined by one surface of the guide part. Touch panel, characterized in that.
The method of claim 6,
The guide unit is a touch panel, characterized in that the tapered surface is formed on one surface.
The method according to claim 1,
And the first connection part is made of the same material as the wiring array and integrally formed.
The method according to claim 1,
And the second connection part is made of the same material as the circuit terminal and integrally formed.
The method according to claim 1,
And the first connection part and the second connection part are bonded to each other by an anisotropic conductive film (ACF) or an anisotropic conductive adhesive (ACA).

Images